A landmark work of narrative geology that helps readers understand deep time, tectonics, and the geological forces that shaped North America, including the context needed to appreciate the Colorado Plateau.
OK, picture this. John McPhee is standing on the shoulder of Interstate 80, maybe six inches from semis doing eighty, and he's staring at a roadcut. Not looking at it. Reading it. Next to him is a geologist who's telling him what the rock used to be, a billion years ago, and McPhee is taking notes like it's the most important conversation he'll have all year. That scene happens over and over in this book. From New Jersey to California, state by state, highway by highway, geologist by geologist. It's patient. It's slow. It's the best thing ever written about how the continent got here.
What McPhee does that nobody else has quite pulled off is stay out of the rock's way. He lets the geologists talk. He lets them show you a layer, turn it over in their hands, and tell you what it was doing four hundred million years ago. You can almost feel him not interrupting. When somebody who knows something this specific is actually explaining it, the move is to shut up and write it down, and McPhee is an absolute master of the shutting up part.
I bring this book up around the fire when somebody asks why the layers in a Cataract cliff look the way they do, or why the Chinle sits where it sits, or what the hell a Kayenta even is. Annals doesn't teach you the Grand Staircase by name. That's a different book. What it teaches you is what a geologist is actually doing when she squints at a cliff — she's reading a sentence in a book that's been open for a long time. Once you've got that orientation, every canyon starts to read differently.
The other gift is scale. The Colorado River, as a feature, is not old. The Plateau, geologically, is recent. The rivers we run have been cutting their current courses for a span of time that geology barely registers. McPhee makes that math land in a way that isn't deflating — it's more like widening the frame so what we do on a ten-day trip fits differently. A canyon can be both new and very, very old. Both things are true in the same mile.
Give it a month. Read it on the couch, not in the boat. And accept that road trips are now ruined for you, because every cliff you drive past, you're going to want to know what it used to be.
